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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Saint Charles, Iowa, is another subzero cold winter month, with temperature in the range of an average high of 28.8°F (-1.8°C) and an average low of 15.3°F (-9.3°C). The coldest month is January, with an average high-temperature of 28.8°F (-1.8°C) and an average low-temperature of 15.3°F (-9.3°C). Weather in January »
Weather in February
The last month of the winter, February, is an icy month in Saint Charles, Iowa, with an average temperature ranging between max 32.5°F (0.3°C) and min 18.3°F (-7.6°C). Saint Charles, Iowa, signifies an average high-temperature of a wintry 32.5°F (0.3°C) in February, closely mirroring the 28.8°F (-1.8°C) of January. Weather in February »
Weather in March
March, the first month of the spring in Saint Charles, is a frosty month, with temperature in the range of an average low of 32.5°F (0.3°C) and an average high of 47.8°F (8.8°C). A clear rise in the average high-temperature is observed during March, increasing from a wintry 32.5°F (0.3°C) in February to a chilly 47.8°F (8.8°C). Weather in March »
Weather in April
April in Saint Charles, Iowa, is a refreshing spring month, with an average temperature varying between 59.7°F (15.4°C) and 42.3°F (5.7°C). With the onset of April, Saint Charles sees a temperature rise, with the average high-temperature moving from March's frosty 47.8°F (8.8°C) to a refreshing 59.7°F (15.4°C). Weather in April »
Weather in May
May, the last month of the spring in Saint Charles, is an agreeable month, with temperature in the range of an average low of 52.7°F (11.5°C) and an average high of 69.4°F (20.8°C). The onset of May marks an increase in the average high-temperature, moving from a moderate 59.7°F (15.4°C) in April to a pleasant 69.4°F (20.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Saint Charles, Iowa, with an average temperature fluctuating between 63°F (17.2°C) and 79.7°F (26.5°C). In Saint Charles, the onset of June comes with an increased average high-temperature, moving from May's pleasant 69.4°F (20.8°C) to a moderately hot 79.7°F (26.5°C). Weather in June »
Weather in July
July, like June, in Saint Charles, Iowa, is another warm summer month, with temperature in the range of an average high of 83.3°F (28.5°C) and an average low of 65.1°F (18.4°C). With average high temperatures of 83.3°F (28.5°C) and lows of 65.1°F (18.4°C), July is the warmest month. Throughout July, the heat index is appraised at a tropical 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Saint Charles, is also a moderately hot month, with an average temperature ranging between min 62.6°F (17°C) and max 81.5°F (27.5°C). Saint Charles's average high-temperature marks a still warm 81.5°F (27.5°C) with the advent of August, closely mirroring that of the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Saint Charles, is also a moderately hot month, with temperature in the range of an average high of 75.4°F (24.1°C) and an average low of 55.9°F (13.3°C). During the shift to September, a minor reduction in average high-temperature is observed, shifting from 81.5°F (27.5°C) in August to a still warm 75.4°F (24.1°C). Weather in September »
Weather in October
October, like September, in Saint Charles, Iowa, is another comfortable autumn month, with an average temperature ranging between min 44.2°F (6.8°C) and max 60.8°F (16°C). As Saint Charles welcomes October, there is a noticeable shift in the average high-temperature, dropping from September's warm 75.4°F (24.1°C) to a refreshing 60.8°F (16°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Saint Charles, Iowa, with an average temperature ranging between min 32.7°F (0.4°C) and max 47.3°F (8.5°C). In Saint Charles, the beginning of November is marked by a lowered average high-temperature, shifting from October's refreshing 60.8°F (16°C) to a frosty 47.3°F (8.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Saint Charles, Iowa, with an average temperature varying between 22.5°F (-5.3°C) and 34.3°F (1.3°C). As Saint Charles enters December, the average high-temperature decreases from the a chilly 47.3°F (8.5°C) of November to a wintry 34.3°F (1.3°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Saint Charles?
With average high temperatures of 28.8°F (-1.8°C) and lows of 15.3°F (-9.3°C), January is the coldest month in Saint Charles, Iowa.
What are the most humid months in Saint Charles?
The months with the highest humidity are January, February and June, with an average relative humidity of 82%.
What is the driest month in Saint Charles?
The month with the least rainfall is January, when the rain falls for 3.8 days and typically collects 0.91" (23mm) of precipitation.
How much does it rain in Saint Charles?
In Saint Charles, during the entire year, the rain falls for 133 days and collects up to 26.14" (664mm) of precipitation.
When does it snow in Saint Charles?
Months with snowfall in Saint Charles are January through May, October through December.
How much does it snow in Saint Charles?
In Saint Charles, Iowa, during the entire year, snow falls for 35 days and aggregates up to 15.04" (382mm) of snow.
What is the month with the least sunshine in Saint Charles?
With an average of 4.4h of sunshine, January has the least sunshine of the year in Saint Charles.
What are the months with the lowest UV index in Saint Charles?
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Saint Charles.
What is the snowiest month in Saint Charles?
The month with the most snowfall in Saint Charles, Iowa, is February, when snow falls for 8.3 days and typically aggregates up to 4.53" (115mm) of snow.
When is Daylight Saving Time (DST) in Saint Charles?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the rainiest month in Saint Charles?
May is the month with the most rainfall in Saint Charles. Rain falls for 17.5 days and accumulates 3.98" (101mm) of precipitation.
When it does not snow in Saint Charles?
June through September are months without snowfall.
When are the longest days in Saint Charles?
The month with the longest days in Saint Charles is June, with an average of 15h and 6min of daylight.
What are the months with the highest UV index in Saint Charles?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What are the warmest months in Saint Charles?
The warmest period in Saint Charles is July, when temperatures fluctuate between an average high of 83.3°F (28.5°C) and a low of 65.1°F (18.4°C).
What month has the most sunshine in Saint Charles?
With an average of 10.3h of sunshine, July has the most sunshine of the year in Saint Charles, Iowa.
What is the least humid month in Saint Charles?
The least humid month is October, with an average relative humidity of 71%.
What is the month with the shortest days in Saint Charles?
The month with the shortest days in Saint Charles is December, with an average of 9h and 18min of daylight.
Average temperature
Saint Charles, IA
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (28.8°F).
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure
Saint Charles, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Saint Charles, IA
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.8mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7mph - Average wind speed in September:
8.1mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity
Saint Charles, IA
The months with the highest relative humidity are January, February and June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Saint Charles, IA
- Average rainfall in January:
0.91" - Average rainfall in February:
1.06" - Average rainfall in March:
1.77" - Average rainfall in April:
2.76" - Average rainfall in May:
3.98" - Average rainfall in June:
3.78"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days
Saint Charles, IA
- Average rainfall days in January:
3.8 days - Average rainfall days in February:
3.8 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
17.5 days - Average rainfall days in June:
17.9 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
13.7 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
7.4 days - Average rainfall days in December:
5.9 days
The month with the highest number of rainy days is June (17.9 days).
The months with the least rainy days are January and February (3.8 days).
Average snowfall
Saint Charles, IA
- Average snowfall in January:
4.29" - Average snowfall in February:
4.53" - Average snowfall in March:
1.97" - Average snowfall in April:
0.91" - Average snowfall in May:
0.35" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Saint Charles, IA
- Average snowfall days in January:
9.1 days - Average snowfall days in February:
8.3 days - Average snowfall days in March:
5 days - Average snowfall days in April:
1.7 days - Average snowfall days in May:
0.2 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.5 days - Average snowfall days in November:
2.7 days - Average snowfall days in December:
7.5 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Saint Charles, IA
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 2min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days
Saint Charles, IA
- Average sunshine days in January:
19.1 days - Average sunshine days in February:
16.7 days - Average sunshine days in March:
15.7 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
11 days - Average sunshine days in June:
9.8 days
- Average sunshine days in July:
11.9 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
15.9 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
20.2 days - Average sunshine days in December:
18.6 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is June (9.8 days).
Average UV index
Saint Charles, IA
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover
Saint Charles, IA
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and September (Cloud cover 29).
Average visibility
Saint Charles, IA
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Saint Charles, Iowa, USA
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